Files
freno-dev/src/server/api/routers/downloads.ts

128 lines
3.3 KiB
TypeScript

import { createTRPCRouter, publicProcedure } from "../utils";
import { z } from "zod";
import {
S3Client,
GetObjectCommand,
ListObjectsV2Command
} from "@aws-sdk/client-s3";
import { getSignedUrl } from "@aws-sdk/s3-request-presigner";
import { env } from "~/env/server";
import { TRPCError } from "@trpc/server";
const assets: Record<string, string> = {
lineage: "Life and Lineage.apk",
cork: "Cork.zip",
"shapes-with-abigail": "shapes-with-abigail.apk"
};
/**
* Find the most recent file in S3 matching a prefix and extension.
*/
async function getLatestFile(
client: S3Client,
bucket: string,
prefix: string,
ext: string
): Promise<string> {
try {
const listCommand = new ListObjectsV2Command({
Bucket: bucket,
Prefix: prefix,
MaxKeys: 100
});
const response = await client.send(listCommand);
if (!response.Contents || response.Contents.length === 0) {
throw new Error(`No files found in S3 with prefix ${prefix}`);
}
const files = response.Contents.filter((obj) =>
obj.Key?.endsWith(ext)
).sort((a, b) => {
const dateA = a.LastModified?.getTime() || 0;
const dateB = b.LastModified?.getTime() || 0;
return dateB - dateA;
});
if (files.length === 0) {
throw new Error(`No ${ext} files found in ${prefix} prefix`);
}
const latestFile = files[0].Key!;
console.log(`Latest file: ${latestFile}`);
return latestFile;
} catch (error) {
console.error(`Error finding latest file for ${prefix}:`, error);
throw error;
}
}
/**
* Per-asset S3 lookup config for macOS apps that auto-resolve latest version.
*/
const latestAssets: Record<
string,
{ prefix: string; ext: string }
> = {
gaze: { prefix: "downloads/Gaze-", ext: ".dmg" },
inputhalo: { prefix: "downloads/InputHalo-", ext: ".dmg" },
thenook: { prefix: "downloads/TheNook-", ext: ".dmg" }
};
export const downloadsRouter = createTRPCRouter({
getDownloadUrl: publicProcedure
.input(z.object({ asset_name: z.string() }))
.query(async ({ input }) => {
const bucket = env.VITE_DOWNLOAD_BUCKET_STRING;
const credentials = {
accessKeyId: env.MY_AWS_ACCESS_KEY,
secretAccessKey: env.MY_AWS_SECRET_KEY
};
const client = new S3Client({
region: env.AWS_REGION,
credentials: credentials
});
try {
let fileKey: string;
const latest = latestAssets[input.asset_name];
if (latest) {
fileKey = await getLatestFile(client, bucket, latest.prefix, latest.ext);
} else {
fileKey = assets[input.asset_name];
if (!fileKey) {
throw new TRPCError({
code: "NOT_FOUND",
message: "Asset not found"
});
}
}
const command = new GetObjectCommand({
Bucket: bucket,
Key: fileKey
});
const signedUrl = await getSignedUrl(client, command, {
expiresIn: 120
});
return { downloadURL: signedUrl };
} catch (error) {
console.error(error);
throw new TRPCError({
code: "INTERNAL_SERVER_ERROR",
message:
error instanceof Error
? error.message
: "Failed to generate download URL"
});
}
})
});